Car-roof.



I To all whom itmay concern.'

` bolts F which DAVID W. HAWKSWORTH, OF DETROIT, MICHIGAN, ASSIG-NOR stoornis COMPANY, or neri-tom,

'lO HUTCHINS CAR GAR-n.001?.

Specification of Letters liatent.

Patented June 3o, 1914.

Application filed Augustg),l 1910. Serial No. 579,553.

Be ithknown that I, DAVID W. I-IAwKswoRTH, a citizen of the United States of America, residing at Detroit, in the county ofWa'yne and State of Michigan, have invented certain new and useful Improvements in Car-Roofs, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to car roofs of the type in which metallic roofing sheets are employed yaid sheets being secured by depending flanges at the eaves.

It is the object of the invention to avoid the rupture of the sheets due to torsional or weaving stresses in the roof frame by providing freedom of adjustment.

To this end the invention consists in the construction as hereinafter set forth.

In the drawings, Figure 1 is .a sectional perspective view vof a portion of the roof structure embodying my invention; Fig. 2 is a cross section through fascia of a car showing the manner of attaching the roof; Fig. 3 is an enlarged cross section showing a lmodified construction.

It is usual in the construction of car roofs of the type above referred to, to nail the-depending lianges of the roof sheets to the fascia of the car. This holds each roofing plate in' a fixed relation to the side of thel car, and as there is frequently a relative movement between saidside and the roof frame the sheets are thereby subjected to stresses. With my `improved construction the depending anges of the sheets are not nailed but are held by means which while preventing any vertical or longitudinal displacement of the sheet, still provide freedom of lateral adjustment and compensate stresses in the roof frame. the side plate of a car, B is all of usual In detail A is the sheeting andC is the fascia, an fl. standard construction.

i) is the roofing sheet which is provided at the eaves with a depending flangefE. This ange is however, normally .spac from the outer surface of the fascia and is secured to the latter by means providing a free inward play of the flange. The. securing means referably employed consists of pass through' the fascia and plate and also through alined apertures in the flange E. AThese bolts are rovide with heads G which, are permanent y spaced Gupte: of this plteit he obtained for the plate and' `fascia with an air space normally from the fascia by a sleeve or thimble I-I. The apertures in the ange E are of Sullicient size' to slidingly engagcthe thimbles H while the ange islimited as to outward. movement bythe head G. If however, any stresses develop which tend to draw one side or the other .of the sheet inward it is free to move lupon position of adjustment without any 1njurious stresses upon the metal of the plate. As shown, three bolts F are used for each of the sheets' D and intermediate the sheets the sleeve I-I and nd its proper bolts having similar spacing thimbles are used for securing the carline cap I. Thus, in operation a high degree of flexibility is imparted to the roof, while the normal spacing of the flanges E from the fascia is also advantageous in that it prevents accumulation of moisture. l

In Fig. 3 a modified construction is shown in which the bolt F der F2 for bearing against the fascia. This separates the lhead Gr from the fascia in the same manner as by use of the thimble.

What IP claim as my invention is:

1. In a car roof, the combination with the side plate and fascia of a roofing plate having a depending flange overlapping said therebetween, a bolt for securing said liange to said fascia, a thimble on saidy bolt forming a spacer, and-a flange o the inner end of said thimble for limiting the inward movement of the sheet flange.

2. In a car roof, side plate and fascia,

the combination with the of a roofing sheet having a depending flange overlapping said fascia and normally spaced therefrom, a bolt for securing said fascia to theside' plate, said bolt having an extension' engaging an aperture in the depending flange and a headedY portion for preventing outward movement of said flange, and a thimble engaging said bolt intermediate its headed portion and said fascia, said thimble having a portion aperture in the sheet' and a portion of greater diameter than the aperture, for preventing contact of the ange with the fascia. In testimony whereof I aflixmy signature in presence owo witnesses'.A

' DA D W. HAWKSWORTH.

Witnesses: C. N. WESLEY, j

W. D. THoiwrsofN.

ive cents each, by addressing the Gmmisiionerof intenti.' Washington, D. C.

is formed with a shou1,

of lesser diameter-than the, 

